Publications by authors named "F J Burkhardt"
The meniscus effect in cell culture vessels limits the observable areas with phase contrast microscopy. For meniscus effect compensation in microtiter plates (MTPs), we present a method using an LCD to replace the fixed condenser annulus, which enables adaptive annulus shifting based on image analysis. This approach led to an increase in phase contrast area by a factor of 8.
View Article and Find Full Text PDFObjectives: This clinical study aimed to evaluate the accuracy of digital and conventional implant impressions in a fully edentulous maxilla and mandible.
Methods: A 53-year-old edentulous patient with four maxillary and two mandibular implants was selected. Ten intraoral scans (IOS) and a conventional impression per jaw were taken.
Demagnetization is an essential step for the demounting and safe handling of end-of-life NdFeB. Thermal demagnetization in air is a straightforward option to demount adhesive-fixed or segmented magnets. However, this process is suspected to increase the uptake of contaminants like O, C and Zn from coatings and adhesives, potentially degrading the recyclate quality.
View Article and Find Full Text PDFObjectives: This feasibility study investigates the application of artificial intelligence (AI) models, specifically transformer-based (TM) and diffusion-based (DM) models, for the reconstruction of single and multiple missing teeth.
Methods: A dataset of 129 digitized models was utilized to create both TM and DM models. Single and multiple missing teeth were artificially generated.
Article Synopsis
- Researchers wanted to find better ways to help young people avoid mental health problems, especially depression.
- They tested three different apps: one that helps build emotional skills, one based on cognitive behavioral therapy (CBT), and one for keeping track of feelings.
- The study included 1,262 young people from several countries, and they checked how the apps helped reduce depression symptoms after three months.